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Old 10-13-2008
tushar_tus tushar_tus is offline
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Join Date: Aug 2008
Posts: 29
Remove all blank lines in shell or awk.

Hi there,


I want to trim space between lines in unix.
I have a file named abc.txt with 2,00,000 lines.But useful are only a few. Please tell me how to delete the blank lines.
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Old 10-13-2008
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cfajohnson cfajohnson is offline Forum Advisor  
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Join Date: Mar 2007
Location: Toronto, Canada
Posts: 2,361

Take your pick:

Code:
tr -s '\n' < abc.txt

grep -v "^$" abc.txt

sed '/^$/d' abc.txt

sed '/./!d' abc.txt

awk '/./' abc.txt
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